Cancel evening out or not?

DH and I very rarely go out together since DD, now 2.5 arrived (twice I think).

We have been invited to a housewarming party across town and I have arranged for a girl (aged 18ish) from DD's nursery to babysit - this will be her first time sitting for us, although she knows DD from nursery.

Sods Law DD has been a bit 'off' today. This has progressed to a temp of around 39 degrees, an all over rash and a sore mouth. I'm guessing slapped cheek, but no slapped cheeks yet. It'll be one of the viruses anyway.

Do I cancel the babysitter and stay home while DH parties the night away? It seems unfair to expose her to viruses, especially when she works in a nursery (I'm pretty sure she's not pregnant, but she wouldn't necessarily tell me if she was).

Or, do I let her know so she has the choice, keep my mobile on me and hope they have a good evening too?

I wouldn't go (if she's not improved). Fevers and rashes rarely do but can go wrong. Always- without being panicky- be alert for meningitis. All that aside, I still wouldn't leave a tot with a fever. But that's me.

The thing is, she will probably be much better tomorrow evening, so don't cancel just yet. Wait and see. Check on her throughout the night. Keep her temp down with Calpol and fluids. See how she goes. Sound like a doctor now, don't I?

Keep checking her hands & feet. DD had those symptoms last week and it was hand, foot & mouth. Blisters on hands & feet appeared 24 hours after initial rash & mouth sores. Plenty of it going around at the moment too! I know loads of kids that have it. Was horrible, but she was over the worst of it in a couple of days